Swagger refactor/cleanup

* Remove duplicate or unused types and constants
* Move all documetation-only models and responses into swagger package
* Remove all unecessary names, go-swagger will determine names from
  struct declarations
* Use Libpod suffix to differentiate between compat and libpod models
  and responses. Taken from swagger:operation declarations.
* Models and responses that start with lowercase are for swagger use
  only while uppercase are used "as is" in the code and swagger comments
* Used gofumpt on new code

```release-note

```

Signed-off-by: Jhon Honce <jhonce@redhat.com>

1 files changed, 5 insertions, 11 deletions

diff --git a/pkg/api/handlers/libpod/images.go b/pkg/api/handlers/libpod/images.go
index cddf4c205..efcbe9d77 100644
--- a/pkg/api/handlers/libpod/images.go
+++ b/pkg/api/handlers/libpod/images.go
@@ -102,9 +102,7 @@ func GetImage(w http.ResponseWriter, r *http.Request) {
 }
 
 func PruneImages(w http.ResponseWriter, r *http.Request) {
-	var (
-		err error
-	)
+	var err error
 	runtime := r.Context().Value(api.RuntimeKey).(*libpod.Runtime)
 	decoder := r.Context().Value(api.DecoderKey).(*schema.Decoder)
 	query := struct {
@@ -129,7 +127,7 @@ func PruneImages(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	var libpodFilters = []string{}
+	libpodFilters := []string{}
 	if _, found := r.URL.Query()["filters"]; found {
 		dangling := (*filterMap)["all"]
 		if len(dangling) > 0 {
@@ -162,9 +160,7 @@ func PruneImages(w http.ResponseWriter, r *http.Request) {
 }
 
 func ExportImage(w http.ResponseWriter, r *http.Request) {
-	var (
-		output string
-	)
+	var output string
 	runtime := r.Context().Value(api.RuntimeKey).(*libpod.Runtime)
 	decoder := r.Context().Value(api.DecoderKey).(*schema.Decoder)
 	query := struct {
@@ -243,9 +239,7 @@ func ExportImage(w http.ResponseWriter, r *http.Request) {
 }
 
 func ExportImages(w http.ResponseWriter, r *http.Request) {
-	var (
-		output string
-	)
+	var output string
 	runtime := r.Context().Value(api.RuntimeKey).(*libpod.Runtime)
 	decoder := r.Context().Value(api.DecoderKey).(*schema.Decoder)
 	query := struct {
@@ -566,7 +560,7 @@ func CommitContainer(w http.ResponseWriter, r *http.Request) {
 		utils.Error(w, http.StatusInternalServerError, errors.Wrapf(err, "CommitFailure"))
 		return
 	}
-	utils.WriteResponse(w, http.StatusOK, handlers.IDResponse{ID: commitImage.ID()}) // nolint
+	utils.WriteResponse(w, http.StatusOK, entities.IDResponse{ID: commitImage.ID()}) // nolint
 }
 
 func UntagImage(w http.ResponseWriter, r *http.Request) {